Here are the key names and locations I'm researching:
 

NAMES	LOCATIONS
Abramowitz	Iasi, Romania
Bugashewitz	Poland
Faigan
Goldberg
Golditch	Boguslav, Skvira, Tarasha, Periyaslav-Chemeinetsky, Ukraine
Goldstein	Romania
Greenberg
Hershkowitz	Botosani, Romania
Kanzer
Karnofsky/Karnovsky	Vilkija, Seredzius, Alove, Alytus, Zarasai, Lithuania
Kraupa	Vienna, Austria
Kutlow/Kotlowitz	Wyszkow, Bransk, Poland and Alove, Lithuania
Nagelschmidt	Berlin, Germany
Nelkin
Neyman	Latvia and Australia
Pragen
Tobin / Turbin	Boguslav, Kiev, Ukraine